EP 0557786 A1 19930901 - Method of separation of 1,4-butanediol from hydrogenation mixtures.
Title (en)
Method of separation of 1,4-butanediol from hydrogenation mixtures.
Title (de)
Verfahren zur Abtrennung von 1,4-Butandiol aus Hydriergemischen.
Title (fr)
Procédé de séparation de 1,4-butanediol à partir de mélanges d'hydrogénation.
Publication
Application
Priority
DE 4205471 A 19920222
Abstract (en)
A process for isolating 1,4-butanediol from mixtures obtained by catalytic hydrogenation of maleic acid esters, fumaric acid esters and/or succinic acid esters, which in addition to 1,4-butanediol contain tetrahydrofuran, water, C1-C4-alcohols, succinic acid diesters, hydroxybutyric acid esters, succinic acid alkyl hydroxyalkyl esters, gamma-butyrolactone and butyric acid esters.
Abstract (de)
Verfahren zur Abtrennung von 1,4-Butandiol aus bei der katalytischen Hydrierung von Maleinsäure-, Fumarsäure- und/oder Bernsteinsäureestern gewonnenen Gemischen, die neben 1,4-Butandiol zusätzlich Tetrahydrofuran, Wasser, C1-C4-Alkohole, Bernsteinsäurediester, Hydroxibuttersäureester, Bernsteinsäure-alkyl-hydroxialkylester, gamma-Butyrolacton und Buttersäureester enthalten.
IPC 1-7
IPC 8 full level
C07C 29/80 (2006.01); C07C 29/82 (2006.01); C07C 31/20 (2006.01)
CPC (source: EP KR US)
C07C 29/80 (2013.01 - EP KR US); C07C 31/207 (2013.01 - KR); Y10S 203/20 (2013.01 - EP US)
Citation (search report)
- [AD] EP 0169396 A1 19860129 - BASF AG [DE]
- [A] US 4032583 A 19770628 - ARGANBRIGHT ROBERT P, et al
- [A] WO 9101960 A1 19910221 - DAVY MCKEE LONDON [GB]
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
US 5342488 A 19940830; AT E137730 T1 19960515; DE 4205471 A1 19930826; DE 59302476 D1 19960613; EP 0557786 A1 19930901; EP 0557786 B1 19960508; ES 2086142 T3 19960616; JP 3358839 B2 20021224; JP H05286876 A 19931102; KR 930017849 A 19930920
DOCDB simple family (application)
US 1849693 A 19930217; AT 93101992 T 19930209; DE 4205471 A 19920222; DE 59302476 T 19930209; EP 93101992 A 19930209; ES 93101992 T 19930209; JP 874193 A 19930122; KR 930002296 A 19930219